September weather in Silt, CO
The average temperature in Silt in September is 62.5°F (45.0°F–80.0°F). Average precipitation: 1.34 inches.
September is a fall month in Silt, and is warmer than the annual average of 49.1°F. Daily temperatures swing about 35°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 15m. For travel, September is a comfortable month to visit.
Avg High
80.0°F
Avg Low
45.0°F
Precipitation
1.34 in
Daylight
12h 15m
September records in Silt
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (2019) | 37.9°F (2005) | 0.40 in (2021) |
| September 2 | 97.0°F (2019) | 42.1°F (2005) | 0.15 in (2016) |
| September 3 | 97.0°F (2022) | 39.9°F (2006) | 1.16 in (2005) |
| September 4 | 98.1°F (2017) | 39.9°F (2008) | 0.79 in (2004) |
| September 5 | 99.0°F (2020) | 37.0°F (1999) | 0.30 in (2007) |
| September 6 | 100.0°F (2022) | 41.0°F (2008) | 0.43 in (2011) |
| September 7 | 99.0°F (2022) | 36.0°F (2010) | 0.22 in (2015) |
| September 8 | 97.0°F (2022) | 33.1°F (2020) | 0.80 in (2020) |
| September 9 | 95.0°F (2021) | 30.9°F (2001) | 1.08 in (2014) |
| September 10 | 95.0°F (2021) | 35.1°F (2001) | 0.51 in (2003) |
| September 11 | 91.9°F (2021) | 36.0°F (2010) | 0.45 in (1998) |
| September 12 | 91.0°F (2018) | 37.0°F (2010) | 0.31 in (1998) |
| September 13 | 90.0°F (2018) | 37.0°F (2012) | 0.15 in (2025) |
| September 14 | 93.0°F (2000) | 30.9°F (2003) | 0.23 in (2022) |
| September 15 | 91.9°F (2000) | 33.1°F (2003) | 0.66 in (2022) |
| September 16 | 90.0°F (2018) | 36.0°F (2004) | 0.18 in (2006) |
| September 17 | 90.0°F (2018) | 29.1°F (2006) | 0.76 in (2007) |
| September 18 | 90.0°F (2018) | 29.1°F (2006) | 0.45 in (2002) |
| September 19 | 91.0°F (2010) | 30.9°F (2003) | 0.27 in (2004) |
| September 20 | 88.0°F (2014) | 36.0°F (2003) | 0.46 in (2004) |
| September 21 | 87.1°F (2020) | 33.1°F (1999) | 0.38 in (2004) |
| September 22 | 87.1°F (2001) | 33.1°F (2019) | 0.69 in (2013) |
| September 23 | 87.1°F (2001) | 33.1°F (2000) | 0.57 in (2017) |
| September 24 | 89.1°F (2015) | 32.0°F (2006) | 0.22 in (2016) |
| September 25 | 88.0°F (2015) | 27.0°F (2000) | 0.08 in (2012) |
| September 26 | 89.1°F (2024) | 30.9°F (2000) | 0.05 in (2012) |
| September 27 | 91.0°F (2024) | 30.0°F (1999) | 0.55 in (2005) |
| September 28 | 90.0°F (2024) | 28.9°F (1999) | 0.48 in (2005) |
| September 29 | 91.0°F (2024) | 23.0°F (1999) | 0.66 in (2021) |
| September 30 | 89.1°F (2024) | 28.0°F (1999) | 1.02 in (2022) |